JP5955628B2 - school bag - Google Patents

Description

  The present invention relates to a school bag, and more specifically, the length of the backpack belt can be adjusted more appropriately and easily, so that the school bag can be more closely attached to the body when carried on the back, and the load weight to be experienced can be greatly reduced. The present invention relates to a school bag that can be made small and reduce the burden on the user.

  Schoolbags that elementary school students carry with their teaching materials when they go to school tend to increase in capacity and size as textbooks and notebooks increase in size and the variety and diversification of teaching materials in recent years.

  Therefore, there is a tendency to become heavier than before when the contained items are added, and the burden on the shoulder and the whole body becomes larger than before, such as when students in the lower to middle grades carry it. ing.

  Here, the situation where elementary students in the body growth period feel heavy loads on their shoulders and whole body is not desirable in terms of growth and health, and when the body movement of the heel is required during school attendance, etc. However, you should avoid situations where you feel heavy loads on your shoulders and your whole body so that you can do that.

  The structure and configuration of the shoulder belt in the school bag is one important factor that determines the weight perceived as a load on the shoulders and whole body when an elementary school child carries it. For this reason, various devices have been conventionally made for the configuration of the shoulder belt.

  For example, the width of the belt at the shoulder portion is about 2 to 3 times the narrowest width, or wider than that, and the position of the upper mounting portion of the shoulder belt can be adjusted left and right. (Patent Document 1), or a proposal (Patent Document 2) that makes it possible to adjust the position of the lower mounting portion of the shoulder belt to the left and right. In addition to the leather material, there is a proposal (Patent Document 3) and the like for a shoulder belt that uses a foamed resin material having a cushioning property that is formed wide.

  However, these proposals do not come out of the conventional belt belts used in the past, and the belt mounting position may be slightly shifted to the left or right in accordance with the changes in the physique during the 6 years of elementary school. Just using a foamed resin material with cushioning properties alone is not sufficient to make the weight perceived by the shoulders and the whole body epoch-making.

  Also, in the case of a conventional school bag that adjusts and fixes the length by the pin portion and pin hole of the shoulder belt, the belt length is adjusted and fixed frequently during the six-year period of use in elementary school life. In general, the frequency of use is about several times at the time of purchase and later, that is, about several times in several years. The actual situation is that is not suitable.

  On the other hand, the inventors of the present invention firstly adjusted the length of the backpack belt and fixed the lower or upper backpack belt having a locking projection formed in the belt width direction, and the belt width to which the locking projection is locked. A school bag that is configured to be performed by a slide-type adjuster mechanism including an upper or lower shoulder belt having a plurality of concave grooves formed at predetermined intervals in the direction has been proposed (Japanese Patent Application No. 2011-273396).

  The school bag by this proposal can adjust the length of the shoulder belt stepwise at a pitch of several millimeters, compared with the conventional school bag which adjusts and fixes the length of the shoulder belt by the pin part and the pin hole. Since the length of the shoulder belt can be adjusted and fixed more optimally according to the individual's physique and body shape, the body weight felt on the shoulder and the whole body can be fixed by the pin part and pin hole of the conventional shoulder belt Compared with the case of adjusting the length, it was excellent that it can be felt lightly by a fraction or even a tenth. In addition, the adjustment of the belt length and the fixing of the belt can be carried out by the child himself carrying the bag with the contents actually put in the school bag and carrying it on his / her back. It was an epoch-making thing because it was possible to adjust the belt length and fix it in that state while sensing the optimal state with the body.

  However, when the belt length is adjusted and fixed in the state where the stored item is actually put in the school bag and it is carried on the back, the engagement between the locking projection and the groove can be released while carrying the bag. It was necessary, but there were cases where it was not possible to cancel the cancellation with small children. In the above-mentioned proposal (Japanese Patent Application No. 2011-273396), the locking release mechanism is formed by providing a release pin on the side surface of the buckle, or by causing a part of the front side front portion of the buckle. A method of releasing the engagement of the groove is proposed, but it is difficult for elementary school students to transmit enough force enough to release with fingers, or it is made suddenly because the release can not be delicately done There was a problem that the belt on the back slipped out by a certain length, making adjustment difficult.

JP 2006-304929 A Utility Model Registration No. 3152773 Utility Model Registration No. 3138960

  In view of the problems of the conventional school bag as described above, the object of the present invention is to make the adjustment of the length of the back belt more appropriate and easy to handle. An object of the present invention is to provide a school bag capable of reducing the burden felt by the user by making the load weight that can be experienced and felt very small.

The school bag of the present invention that achieves the above-described object has the following configuration (1).
(1) Adjusting and fixing the length of the shoulder belt is formed at a predetermined interval in the belt width direction in which the locking protrusion is locked to the lower or upper shoulder belt having locking protrusions formed in the belt width direction. A slide-type adjuster mechanism comprising an upper or lower shoulder belt having a plurality of concave grooves, and the locking projection is provided on the buckle portion and the user's body of the buckle portion A lock release mechanism is provided on the side surface, and the lock release mechanism is configured to release the lock relationship between the lock protrusion and the concave groove by operating the lock release mechanism. And a guide slit hole through which the upper or lower backpack belt having the plurality of concave grooves on the tip side is passed. The Bag that tongue guide body which is characterized in that is provided.

Moreover, in the school bag of this invention, it is preferable to consist of either of the structures of the following (2)- (4) .
(2) The school bag according to (1) , wherein the unlocking mechanism is a push-type convex body.
(3) A locking projection formed in the belt width direction is formed on a lower shoulder belt, and a plurality of concave grooves formed at predetermined intervals in the belt width direction to which the locking projection is locked are The school bag according to (1) or (2) , wherein the school bag is formed on a back belt.
(4) The plurality of concave grooves are formed with a total length L of 15 to 30 cm in the length direction of the shoulder belt, according to any one of (1) to (3) above. school bag.

  According to the school bag of the present invention according to claim 1, the stepwise length adjustment of the shoulder belt can be performed at a pitch of several millimeters, and the length of the shoulder belt is adjusted to the individual physique and body shape. Since it can be adjusted and fixed more optimally, the weight perceived by the shoulder and the whole body can be reduced by a factor of 10 or even 10 compared to the conventional case of fixing and adjusting the length with the pin part and pin hole of the shoulder belt. You can make it feel light by about a minute.

  The fact that you can feel less weight not only contributes to the growth and health of your child's physique, but also allows you to do it even when you need to move your body quickly and quickly while you are in school. It also leads to protecting children from unexpected accidents and incidents.

  The adjustment of the belt length and the fixing of the belt can be carried out while the child carrying the bag is actually carrying the stored items in the school bag and carrying it on his / her back. It is of great significance to be able to satisfactorily adjust the belt length and fix the belt length in that state while sensing. In particular, in the school bag according to the present invention, the locking release mechanism for releasing the locking relationship between the locking projection and the recessed groove provided on the buckle portion is provided on the body side surface of the buckle portion. , Since the releasing operation of the locking relationship can be performed by holding the entire circumference of the belt with a finger and pushing it with the thumb, etc., it may cause inconveniences such as removing the belt from the back belt relatively easily. It is possible to easily adjust the length of the shoulder belt in a stepwise manner under good handling conditions. For example, even when a third party such as a parent faces a child with a lantern facing each other and adjusts and fixes the belt length, it is easy to adjust and causes inconveniences such as losing the belt on the back. (For example, it is possible to push the unlocking mechanism with the index finger and hold the entire circumference with the fingers).

According to the school bag of the present invention according to any one of claims 2 to 4 , the effect of the school bag of the present invention according to claim 1 described above can be obtained more reliably, and the locking state of the slide type adjuster mechanism can be obtained. It is possible to provide a school bag that is easier to use in that it can be prevented from being released or unintentionally released, and can be optimally adjusted and fixed in a wide range.

FIG. 1 shows an example of an embodiment of a school bag according to the present invention, and is a schematic external view seen from the backrest side, showing a state where upper and lower backpack belts are not connected, The back belt is folded back to show the side with the groove facing the body. FIG. 4 is a perspective view showing a part of the upper surface of a buckle part in a partially crushed state in order to explain an example of a slide type adjuster mechanism that can be employed in the school bag according to the present invention. 1 shows an embodiment of a school bag according to the present invention, and is a schematic external view seen from the backrest side, showing a state where upper and lower shoulder belts are connected by the school bag shown in FIG. . It is an external appearance perspective view explaining the preferable example of a buckle part which can be employ | adopted with the school bag concerning this invention.

  Hereinafter, the school bag of the present invention will be described in more detail with reference to the drawings.

  1 to 4 show an embodiment of the school bag according to the present invention. The school bag body 1 has left and right shoulder belts 2 on the backrest 5 side.

  The left and right shoulder belts 2 are adjusted in length and fixed by the lower and upper shoulder belts having locking protrusions (7 in FIG. 2) formed in the belt width direction and the locking protrusions. It is configured to be performed individually by a slide type adjuster mechanism including an upper back belt 21 or a lower back belt 22 having a plurality of concave grooves 3 formed at predetermined intervals in the belt width direction.

  In FIG. 1, reference numeral 4 denotes a buckle portion. In the illustrated embodiment, the buckle portion is disposed at the tip of the lower backpack belt 22, and has a space through which the upper backpack belt 21 is passed and a locking projection 7. Yes. Reference numeral 6 denotes a belt threading ring through which the shoulder belt 21 that has come out of the buckle portion 4 is passed.

  The plurality of grooves 3 are indicated by broken lines on the upper-side belt 21 on the right side of FIG. 1 (because they are on the back side), and are indicated by solid lines on the upper-side belt 21 that is folded back so that the back side of the left side can be seen. As shown, it is provided on the back side (body side) of the shoulder belt. The total length L in the belt length direction of the region where the concave groove 3 is provided is preferably about 15 cm to 30 cm. More preferably, the total length L is about 20 cm to 25 cm. This is so that it can adapt to the growth of the physique from the first grader to the sixth grader. Further, in order to make the belt length adjustment more optimal with a fine pitch, the pitch for providing the groove is about 3.5 to 6 mm, preferably about 4 to 5 mm, and the groove is provided. . The concave groove is preferably made of a hard synthetic resin material having good durability and formed as one member having a plurality of concave grooves.

  FIG. 2 is a perspective view showing a part of the vicinity of the upper surface of the buckle portion 4 in order to explain an example of a slide type adjuster mechanism that can be employed in the school bag according to the present invention.

  A locking member 26 is disposed inside the buckle portion 4, and a claw-shaped convex portion (locking protrusion) 7 is provided at the end of the locking member 26 opposite to the front end side of the buckle portion. The claw-like convex portion (locking protrusion) 7 is engaged with the concave groove 3 of the upper shoulder belt 21 introduced from the inlet (not shown) of the buckle portion, and both belts are engaged and locked (fixed). ) The locking member 26 is formed in a structure that can rotate about the rotation support shaft 27 of the locking member as a central axis. Normally, the locking member 26 is a spring or the like (not shown). Due to the force, the claw-like convex portion (locking projection) 7 is engaged with the concave groove 3 while being urged toward the concave groove 3 and fixedly held.

  With this claw-shaped convex portion (locking projection) 7 meshing with the concave groove 3, the buckle portion 4 is held with one hand, and the upper shoulder belt is pulled further downward with the other hand, By sliding so as to make a sound, the locking relationship between the claw-shaped convex portion (locking protrusion) 7 and the groove on the inner side (back side) of the upper back belt 21 shifts in units of one pitch of the groove. The adjustment of the connection length can be performed in a narrow manner.

On the other hand, when the locking relationship is once released for the reason of returning to the length before narrowing, the both belts 21, 21 are operated by operating the locking release mechanism 8 formed in a part of the locking member 26 . 22 can be disengaged, and after the upper shoulder belt 21 is returned and loosened moderately, the connection length can be adjusted again by narrowing down as described above. The specific structure of the unlocking mechanism 8 is not particularly limited. For example, the locking release button 25 formed in a convex shape such as a hemispherical shape is pushed in the direction of arrow P so that the rotation support shaft 27 is centered. Thus, a structure that lifts the claw-shaped convex portion (locking projection) 7 in the direction of the arrow R, releases the mesh with the concave groove 3, and releases the engagement of the belts 21 and 22 can be adopted. The lock release button 25 has a structure that protrudes as a whole (columnar, semi-conical, etc.), but even if its upper surface is configured in a concave shape, it may be easy to apply force.

  Therefore, in the school bag of the present invention, even when there is a short time just before going to school where the stored items are stored, the locking relationship between the claw-shaped protrusion (locking protrusion) and the groove on the inner side (back side) of the upper backpack belt Can be released relatively easily with the thumb of the child or the index finger of a third party, and the upper shoulder belt 21 can be pulled up and loosened to adjust the length and make fine adjustments again. It is possible to easily achieve a state of weight that can be experienced. In addition, since the lock release mechanism 8 is on the user's body side, it is difficult to be tampered with from the outside and it is easy to prevent unintentional release.

  FIG. 3 shows a state in which the upper and lower shoulder belts 21 and 22 of the school bag shown in FIG. 1 are connected.

  According to the school bag of the present invention, the method of adjusting the length of the carrying belt through the pin through the pin hole in the conventional school bag and fixing it can only adjust the length at a pitch of about 2.5 to 3.5 cm. In contrast, the length of the shoulder belt can be adjusted and fixed at a finer pitch of about 3.5 to 6 mm, generally about 3.0 to 5 mm. Therefore, while actually carrying it on the shoulder, in combination with the fact that it can be fixed after adjusting the belt length under a more optimal condition by the slide type adjuster mechanism, it will be carried on the back in a state where the school bag can be fitted to the body. be able to. As a result, according to the study by the present inventors, the bodily sensation weight is reduced by a fraction of 1 to 1 compared with the conventional system in which the length of the shoulder belt is adjusted and fixed by passing the pin through the pin hole of the shoulder belt. / 5, and in some cases, it can be reduced to about 1/10.

  In the present invention, the slide type adjuster mechanism only needs to be configured so that the structure of the buckle part is located on the user's body side, and the rest is adopted in the waist belt having the same mechanism. The configuration of the claw-shaped convex portions (locking projections) and the concave grooves can be used with substantially the same specifications.

  Although this lock release button 25 is provided toward the user's body side, generally, the buckle portion 4 comes to be located in the outer space diagonally above the user's waist. There are few cases where it hits the user's body. As shown in FIG. 4, the lower back belt 22 having an opening 28 for exposing the unlocking mechanism 8 and having a locking projection so as not to be accidentally released when hitting. It is preferable to attach and use the tongue-shaped guide body 9 having the guide slit hole 29 through which the upper shoulder belt 21 having the concave groove 3 is passed and the base portion 10 is fixed by means such as tacking and rivets.

  The tongue-shaped guide body 9 may be formed of, for example, a soft synthetic leather or natural leather having a certain thickness and flexibility, and the user can release the lock release mechanism 8 via the opening 28 when necessary. Can act. Under normal circumstances, the presence of the tongue-shaped guide body 9 prevents an external force from acting on the locking release mechanism 8 to release the locking relationship between the claw-shaped convex portion (locking projection) 7 and the concave groove 3. ing. The guide slit hole 29 is provided to ensure a normal introduction path of the upper backpack belt 21 so that the upper backrest belt 21 is not directly introduced into the buckle portion 4 at a steep angle and damages the adjuster mechanism. It has the function of.

  In the present invention, the buckle portion 4 can also be provided on the upper shoulder belt 21 side without being provided on the lower shoulder belt 22. However, in that case, since the concave groove 3 is provided in the lower shoulder belt 22, it is generally difficult to increase the formation length of the concave groove, and the adjustable range of the length of the shoulder belt is reduced. The belts 21 and 22 are preferably configured so that the buckle portion 4 is located on the upper side as much as possible.

  In addition, the concave groove 3 may be configured to face outward, but from the viewpoint of appearance and prevention of dirt, the concave groove 3 is configured to face inward (body side) as shown in FIG. It is good.

  Further, the upper shoulder belt 21 on the tip side of the engagement portion between the claw-shaped convex portion (locking projection) 7 and the concave groove 3 is an opening (not shown) provided on the belt near the root of the buckle 4. It is possible to employ either turning to the body side or turning to the outside on the opposite side. The embodiment shown in FIGS. 3 and 4 shows an example in which it is turned outward.

  The plurality of concave grooves 3 of the upper shoulder belt 21 (or the lower shoulder belt 22) are continuously concave grooves, one of which has an inclined surface and the other of which has a vertical surface, like a saw blade in cross section. What is cut off is good. This is because the inclined surface can be pulled without any trouble when the belt is slid and pulled, and the vertical surface can prevent the belt from sliding and loosening in the opposite direction.

  In order to prevent the upper and lower shoulder belts 21 and 22 from being easily disengaged, it is also preferable that the upper shoulder belt 21 that has passed through the buckle portion 4 has its tip passed through the belt loop 6. As shown in FIG. 3 (b), it is made of a strong material such as synthetic leather, natural leather, metal or hard plastic, in the immediate vicinity of the buckle 4 or almost integrally with the buckle. It is also preferable to provide the belt-passing ring 6.

  Further, the buckle portion has a space through which the locking member 26, the claw-shaped convex portion (locking protrusion) 7, and the upper backpack belt 21 are passed, and is locked to the back surface (the surface on the body side of the user). The release mechanism 8 is not particularly limited as long as it has the release mechanism 8, but it is preferable that the entire outside of the buckle portion is integrally formed. This is to prevent the locked state from being unlocked or destroyed by unnecessary external force.

  In the school bag of the present invention, the upper and lower back belts are connected at the same time when the length of the back belt is adjusted and fixed, but it is not always necessary to use the back belts at the time of daily use. However, every time the school bag is carried on the back, the length may be adjusted, finely adjusted, and fixed while confirming the weight to be felt in the state where the stored item is actually put. With the school bag of the present invention, the length of the shoulder belt can be finely adjusted in units of several millimeters. Therefore, such fine adjustment should be performed in accordance with the weight of the daily items, or not every day. However, it is preferable to perform it frequently whenever there is any change in that the effects of the school bag of the present invention can be enjoyed more.

  Once adjusted and fixed, the upper and lower shoulder belts cannot be easily disconnected, or the upper shoulder belt is not easily pulled out of the buckle 4. Therefore, a detachable or semi-fixed member for widening or thickening may be provided near the tip of the shoulder belt. The member for widening or thickening can be made of leather, synthetic leather, synthetic resin or cloth.

  The school bag of the present invention exhibits a particularly excellent effect when used in a school bag of a low-grade child with a small body, a child with weak physical strength, or a child in a growing period where his / her height increases.

1: School bag body 2: Back belt 3: Groove 4: Buckle part 5: Back rest part 6: Belt loop 7: Claw-shaped convex part (locking projection)
8: Lock release mechanism (lock release button)
9: tongue-shaped guide body 10: base 21 of tongue-shaped guide body: upper back belt 22: lower back belt 25: locking release button 26: locking member 27: rotation support shaft 28: locking release mechanism 8 is exposed Opening 29: guide slit hole

Claims (4)

Adjusting and fixing the length of the back belt, a lower or upper back belt having a locking projection formed in the belt width direction, and a plurality of belt belts formed at predetermined intervals in the belt width direction to which the locking projection is locked. And is configured to be performed by a slide-type adjuster mechanism including an upper or lower shoulder belt having a concave groove, and the locking projection is provided on the buckle portion, and the user's body side surface of the buckle portion A locking release mechanism is provided, and the locking relationship between the locking projection and the groove is released by operating the locking release mechanism .
An upper or lower shoulder belt having an opening for exposing the unlocking mechanism, a base portion fixed to a lower or upper shoulder belt having the retaining protrusion, and having the plurality of concave grooves on a distal end side. A school bag characterized in that a tongue-shaped guide body having a guide slit hole through which it passes is provided . The school bag according to claim 1 , wherein the unlocking mechanism is a push-type convex body. Locking protrusions formed in the belt width direction are formed on the lower back belt, and a plurality of concave grooves formed at predetermined intervals in the belt width direction to be locked by the locking protrusions are formed on the upper back belt. satchel according to claim 1 or 2, characterized by being formed. The school bag according to any one of claims 1 to 3 , wherein the plurality of concave grooves are formed with a total length L of 15 to 30 cm in a shoulder belt length direction.

Images